I could internationalize you could internationalize she could internationalize we could internationalize you could internationalize they could internationalize
V-ing form
I could be internationalizing you could be internationalizing she could be internationalizing we could be internationalizing you could be internationalizing they could be internationalizing
Perfect
I could have internationalized you could have internationalized she could have internationalized we could have internationalized you could have internationalized they could have internationalized
V-ing perfect
I could have been internationalizing you could have been internationalizing she could have been internationalizing we could have been internationalizing you could have been internationalizing they could have been internationalizing
Negation
Simple form
I couldn't internationalize you couldn't internationalize she couldn't internationalize we couldn't internationalize you couldn't internationalize they couldn't internationalize
V-ing form
I couldn't be internationalizing you couldn't be internationalizing she couldn't be internationalizing we couldn't be internationalizing you couldn't be internationalizing they couldn't be internationalizing
Perfect
I couldn't have internationalized you couldn't have internationalized she couldn't have internationalized we couldn't have internationalized you couldn't have internationalized they couldn't have internationalized
V-ing perfect
I couldn't have been internationalizing you couldn't have been internationalizing she couldn't have been internationalizing we couldn't have been internationalizing you couldn't have been internationalizing they couldn't have been internationalizing
Interrogative form
Simple form
could I internationalize? could you internationalize? could she internationalize? could we internationalize? could you internationalize? could they internationalize?
V-ing form
could I be internationalizing? could you be internationalizing? could she be internationalizing? could we be internationalizing? could you be internationalizing? could they be internationalizing?
Perfect
could I have internationalized? could you have internationalized? could she have internationalized? could we have internationalized? could you have internationalized? could they have internationalized?
V-ing perfect
could I have been internationalizing? could you have been internationalizing? could she have been internationalizing? could we have been internationalizing? could you have been internationalizing? could they have been internationalizing?
Interro-negative form
Simple form
couldn't I internationalize? couldn't you internationalize? couldn't she internationalize? couldn't we internationalize? couldn't you internationalize? couldn't they internationalize?
V-ing form
couldn't I be internationalizing? couldn't you be internationalizing? couldn't she be internationalizing? couldn't we be internationalizing? couldn't you be internationalizing? couldn't they be internationalizing?
Perfect
couldn't I have internationalized? couldn't you have internationalized? couldn't she have internationalized? couldn't we have internationalized? couldn't you have internationalized? couldn't they have internationalized?
V-ing perfect
couldn't I have been internationalizing? couldn't you have been internationalizing? couldn't she have been internationalizing? couldn't we have been internationalizing? couldn't you have been internationalizing? couldn't they have been internationalizing?